/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:06:45,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:06:46,040 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 11:06:46,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:06:46,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:06:46,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:06:46,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:06:46,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:06:46,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:06:46,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:06:46,084 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:06:46,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:06:46,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:06:46,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:06:46,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:06:46,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:06:46,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:06:46,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:06:46,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:06:46,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:06:46,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:06:46,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:06:46,088 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:06:46,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:06:46,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:06:46,089 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:06:46,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:06:46,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:06:46,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:06:46,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:06:46,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:06:46,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:06:46,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:06:46,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:06:46,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:06:46,091 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:06:46,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:06:46,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:06:46,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:06:46,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:06:46,411 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:06:46,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-27 11:06:47,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:06:47,898 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:06:47,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_15-list_entry_nr.i [2023-08-27 11:06:47,918 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b831a19/9970a356aa9e43078e7102c89432645f/FLAGa06affd25 [2023-08-27 11:06:47,933 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b831a19/9970a356aa9e43078e7102c89432645f [2023-08-27 11:06:47,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:06:47,938 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:06:47,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:06:47,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:06:47,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:06:47,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:06:47" (1/1) ... [2023-08-27 11:06:47,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7bd23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:47, skipping insertion in model container [2023-08-27 11:06:47,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:06:47" (1/1) ... [2023-08-27 11:06:47,992 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:06:48,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:06:48,514 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:06:48,537 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:06:48,538 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:06:48,557 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-27 11:06:48,566 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [1233] [2023-08-27 11:06:48,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:06:48,662 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:06:48,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48 WrapperNode [2023-08-27 11:06:48,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:06:48,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:06:48,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:06:48,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:06:48,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,727 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2023-08-27 11:06:48,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:06:48,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:06:48,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:06:48,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:06:48,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:06:48,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:06:48,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:06:48,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:06:48,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (1/1) ... [2023-08-27 11:06:48,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:06:48,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:06:48,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 11:06:48,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 11:06:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:06:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:06:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 11:06:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:06:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:06:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-27 11:06:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 11:06:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 11:06:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:06:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:06:48,846 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 11:06:49,001 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:06:49,003 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:06:49,130 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:06:49,135 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:06:49,135 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 11:06:49,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:06:49 BoogieIcfgContainer [2023-08-27 11:06:49,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:06:49,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:06:49,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:06:49,141 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:06:49,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:06:47" (1/3) ... [2023-08-27 11:06:49,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff9b948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:06:49, skipping insertion in model container [2023-08-27 11:06:49,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:48" (2/3) ... [2023-08-27 11:06:49,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff9b948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:06:49, skipping insertion in model container [2023-08-27 11:06:49,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:06:49" (3/3) ... [2023-08-27 11:06:49,144 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2023-08-27 11:06:49,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:06:49,159 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-27 11:06:49,159 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:06:49,199 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 11:06:49,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 131 flow [2023-08-27 11:06:49,257 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2023-08-27 11:06:49,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:06:49,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-27 11:06:49,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 63 transitions, 131 flow [2023-08-27 11:06:49,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 62 transitions, 127 flow [2023-08-27 11:06:49,266 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:06:49,274 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 62 transitions, 127 flow [2023-08-27 11:06:49,276 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 62 transitions, 127 flow [2023-08-27 11:06:49,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions, 127 flow [2023-08-27 11:06:49,299 INFO L124 PetriNetUnfolderBase]: 0/62 cut-off events. [2023-08-27 11:06:49,300 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:06:49,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 0/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-27 11:06:49,306 INFO L119 LiptonReduction]: Number of co-enabled transitions 874 [2023-08-27 11:06:51,271 INFO L134 LiptonReduction]: Checked pairs total: 1235 [2023-08-27 11:06:51,271 INFO L136 LiptonReduction]: Total number of compositions: 56 [2023-08-27 11:06:51,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:06:51,287 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2469548e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:06:51,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-27 11:06:51,291 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:06:51,291 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-08-27 11:06:51,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:06:51,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:51,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 11:06:51,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:51,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:51,296 INFO L85 PathProgramCache]: Analyzing trace with hash 7180286, now seen corresponding path program 1 times [2023-08-27 11:06:51,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:51,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820598379] [2023-08-27 11:06:51,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:51,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:51,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:51,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820598379] [2023-08-27 11:06:51,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820598379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:51,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:51,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 11:06:51,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011332764] [2023-08-27 11:06:51,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:51,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:06:51,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:51,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:06:51,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:06:51,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 119 [2023-08-27 11:06:51,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:51,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:51,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 119 [2023-08-27 11:06:51,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:52,070 INFO L124 PetriNetUnfolderBase]: 31/76 cut-off events. [2023-08-27 11:06:52,070 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:06:52,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 76 events. 31/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 246 event pairs, 3 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 148. Up to 44 conditions per place. [2023-08-27 11:06:52,073 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 19 selfloop transitions, 5 changer transitions 4/28 dead transitions. [2023-08-27 11:06:52,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 28 transitions, 115 flow [2023-08-27 11:06:52,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:06:52,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:06:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 217 transitions. [2023-08-27 11:06:52,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45588235294117646 [2023-08-27 11:06:52,085 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 217 transitions. [2023-08-27 11:06:52,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 217 transitions. [2023-08-27 11:06:52,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:52,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 217 transitions. [2023-08-27 11:06:52,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,096 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,097 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 4 states and 217 transitions. [2023-08-27 11:06:52,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 28 transitions, 115 flow [2023-08-27 11:06:52,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:06:52,101 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 54 flow [2023-08-27 11:06:52,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-08-27 11:06:52,106 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2023-08-27 11:06:52,106 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 54 flow [2023-08-27 11:06:52,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:52,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 11:06:52,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:06:52,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:52,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash 7180291, now seen corresponding path program 1 times [2023-08-27 11:06:52,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:52,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167050738] [2023-08-27 11:06:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:52,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:52,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:52,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167050738] [2023-08-27 11:06:52,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167050738] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:52,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:52,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 11:06:52,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151182173] [2023-08-27 11:06:52,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:52,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:06:52,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:52,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:06:52,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:06:52,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 119 [2023-08-27 11:06:52,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:52,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 119 [2023-08-27 11:06:52,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:52,481 INFO L124 PetriNetUnfolderBase]: 22/58 cut-off events. [2023-08-27 11:06:52,481 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 11:06:52,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 58 events. 22/58 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 180 event pairs, 2 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 142. Up to 35 conditions per place. [2023-08-27 11:06:52,483 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 18 selfloop transitions, 5 changer transitions 2/25 dead transitions. [2023-08-27 11:06:52,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 122 flow [2023-08-27 11:06:52,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:06:52,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:06:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 214 transitions. [2023-08-27 11:06:52,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4495798319327731 [2023-08-27 11:06:52,488 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 214 transitions. [2023-08-27 11:06:52,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 214 transitions. [2023-08-27 11:06:52,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:52,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 214 transitions. [2023-08-27 11:06:52,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,495 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,495 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 54 flow. Second operand 4 states and 214 transitions. [2023-08-27 11:06:52,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 122 flow [2023-08-27 11:06:52,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:06:52,497 INFO L231 Difference]: Finished difference. Result has 25 places, 16 transitions, 65 flow [2023-08-27 11:06:52,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=65, PETRI_PLACES=25, PETRI_TRANSITIONS=16} [2023-08-27 11:06:52,497 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 7 predicate places. [2023-08-27 11:06:52,498 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 16 transitions, 65 flow [2023-08-27 11:06:52,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:52,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 11:06:52,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 11:06:52,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:52,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash 7180371, now seen corresponding path program 1 times [2023-08-27 11:06:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:52,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211436931] [2023-08-27 11:06:52,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:52,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:52,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:52,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211436931] [2023-08-27 11:06:52,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211436931] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:52,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:52,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 11:06:52,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711639346] [2023-08-27 11:06:52,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:52,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:06:52,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:52,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:06:52,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:06:52,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 119 [2023-08-27 11:06:52,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 16 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:52,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 119 [2023-08-27 11:06:52,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:52,796 INFO L124 PetriNetUnfolderBase]: 19/52 cut-off events. [2023-08-27 11:06:52,796 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-08-27 11:06:52,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 52 events. 19/52 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 151 event pairs, 3 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 138. Up to 34 conditions per place. [2023-08-27 11:06:52,797 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 15 selfloop transitions, 6 changer transitions 2/23 dead transitions. [2023-08-27 11:06:52,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 137 flow [2023-08-27 11:06:52,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:06:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:06:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2023-08-27 11:06:52,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4432773109243697 [2023-08-27 11:06:52,800 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 211 transitions. [2023-08-27 11:06:52,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 211 transitions. [2023-08-27 11:06:52,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:52,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 211 transitions. [2023-08-27 11:06:52,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,802 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,802 INFO L175 Difference]: Start difference. First operand has 25 places, 16 transitions, 65 flow. Second operand 4 states and 211 transitions. [2023-08-27 11:06:52,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 137 flow [2023-08-27 11:06:52,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 123 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:06:52,804 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 85 flow [2023-08-27 11:06:52,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-27 11:06:52,805 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 9 predicate places. [2023-08-27 11:06:52,805 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 85 flow [2023-08-27 11:06:52,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:52,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 11:06:52,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 11:06:52,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:52,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:52,806 INFO L85 PathProgramCache]: Analyzing trace with hash 7180389, now seen corresponding path program 1 times [2023-08-27 11:06:52,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:52,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806809624] [2023-08-27 11:06:52,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:52,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:52,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:52,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:52,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806809624] [2023-08-27 11:06:52,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806809624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:52,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:52,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 11:06:52,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103617310] [2023-08-27 11:06:52,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:52,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:06:52,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:52,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:06:52,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:06:52,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 119 [2023-08-27 11:06:52,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:52,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 119 [2023-08-27 11:06:52,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:52,987 INFO L124 PetriNetUnfolderBase]: 16/46 cut-off events. [2023-08-27 11:06:52,988 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-27 11:06:52,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 46 events. 16/46 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 121 event pairs, 4 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 133. Up to 33 conditions per place. [2023-08-27 11:06:52,989 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 14 selfloop transitions, 6 changer transitions 2/22 dead transitions. [2023-08-27 11:06:52,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 142 flow [2023-08-27 11:06:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:06:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:06:52,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2023-08-27 11:06:52,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4411764705882353 [2023-08-27 11:06:52,990 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 210 transitions. [2023-08-27 11:06:52,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 210 transitions. [2023-08-27 11:06:52,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:52,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 210 transitions. [2023-08-27 11:06:52,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,992 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,992 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 85 flow. Second operand 4 states and 210 transitions. [2023-08-27 11:06:52,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 142 flow [2023-08-27 11:06:52,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 137 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:06:52,994 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 98 flow [2023-08-27 11:06:52,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2023-08-27 11:06:52,995 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 12 predicate places. [2023-08-27 11:06:52,995 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 98 flow [2023-08-27 11:06:52,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:52,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:52,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:06:52,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 11:06:52,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:52,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:52,996 INFO L85 PathProgramCache]: Analyzing trace with hash -839865490, now seen corresponding path program 1 times [2023-08-27 11:06:52,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:52,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431018270] [2023-08-27 11:06:52,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:52,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:53,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:53,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:53,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431018270] [2023-08-27 11:06:53,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431018270] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:53,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:53,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:06:53,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109930553] [2023-08-27 11:06:53,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:53,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:06:53,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:53,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:06:53,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:06:53,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2023-08-27 11:06:53,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:53,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2023-08-27 11:06:53,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:53,228 INFO L124 PetriNetUnfolderBase]: 12/46 cut-off events. [2023-08-27 11:06:53,228 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-08-27 11:06:53,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 46 events. 12/46 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 148 event pairs, 2 based on Foata normal form. 3/49 useless extension candidates. Maximal degree in co-relation 138. Up to 24 conditions per place. [2023-08-27 11:06:53,229 INFO L140 encePairwiseOnDemand]: 114/119 looper letters, 19 selfloop transitions, 5 changer transitions 1/25 dead transitions. [2023-08-27 11:06:53,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 25 transitions, 170 flow [2023-08-27 11:06:53,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:06:53,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:06:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 215 transitions. [2023-08-27 11:06:53,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45168067226890757 [2023-08-27 11:06:53,233 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 215 transitions. [2023-08-27 11:06:53,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 215 transitions. [2023-08-27 11:06:53,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:53,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 215 transitions. [2023-08-27 11:06:53,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,235 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,236 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 98 flow. Second operand 4 states and 215 transitions. [2023-08-27 11:06:53,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 25 transitions, 170 flow [2023-08-27 11:06:53,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 25 transitions, 158 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:06:53,237 INFO L231 Difference]: Finished difference. Result has 31 places, 19 transitions, 108 flow [2023-08-27 11:06:53,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=31, PETRI_TRANSITIONS=19} [2023-08-27 11:06:53,238 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 13 predicate places. [2023-08-27 11:06:53,238 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 108 flow [2023-08-27 11:06:53,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:53,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:06:53,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 11:06:53,239 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:53,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:53,240 INFO L85 PathProgramCache]: Analyzing trace with hash -837703240, now seen corresponding path program 2 times [2023-08-27 11:06:53,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:53,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429889140] [2023-08-27 11:06:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:53,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:53,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:53,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429889140] [2023-08-27 11:06:53,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429889140] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:53,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:53,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:06:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717569383] [2023-08-27 11:06:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:53,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:06:53,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:06:53,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:06:53,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2023-08-27 11:06:53,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:53,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2023-08-27 11:06:53,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:53,443 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-08-27 11:06:53,443 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 11:06:53,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 18 events. 0/18 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 27 event pairs, 0 based on Foata normal form. 3/21 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-27 11:06:53,444 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 13 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2023-08-27 11:06:53,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 16 transitions, 119 flow [2023-08-27 11:06:53,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:06:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:06:53,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 159 transitions. [2023-08-27 11:06:53,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44537815126050423 [2023-08-27 11:06:53,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 159 transitions. [2023-08-27 11:06:53,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 159 transitions. [2023-08-27 11:06:53,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:53,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 159 transitions. [2023-08-27 11:06:53,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,447 INFO L175 Difference]: Start difference. First operand has 31 places, 19 transitions, 108 flow. Second operand 3 states and 159 transitions. [2023-08-27 11:06:53,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 16 transitions, 119 flow [2023-08-27 11:06:53,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 16 transitions, 109 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-27 11:06:53,448 INFO L231 Difference]: Finished difference. Result has 31 places, 16 transitions, 90 flow [2023-08-27 11:06:53,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=31, PETRI_TRANSITIONS=16} [2023-08-27 11:06:53,449 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 13 predicate places. [2023-08-27 11:06:53,449 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 90 flow [2023-08-27 11:06:53,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:53,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:06:53,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 11:06:53,450 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:53,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:53,450 INFO L85 PathProgramCache]: Analyzing trace with hash -199279778, now seen corresponding path program 1 times [2023-08-27 11:06:53,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:53,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81743682] [2023-08-27 11:06:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:53,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:53,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:53,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81743682] [2023-08-27 11:06:53,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81743682] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:53,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:53,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 11:06:53,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138694159] [2023-08-27 11:06:53,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:53,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 11:06:53,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:53,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 11:06:53,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-27 11:06:53,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 119 [2023-08-27 11:06:53,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 90 flow. Second operand has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:53,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 119 [2023-08-27 11:06:53,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:53,891 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-08-27 11:06:53,892 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-27 11:06:53,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 17 events. 0/17 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 21 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-08-27 11:06:53,892 INFO L140 encePairwiseOnDemand]: 112/119 looper letters, 8 selfloop transitions, 7 changer transitions 2/17 dead transitions. [2023-08-27 11:06:53,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 17 transitions, 124 flow [2023-08-27 11:06:53,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-27 11:06:53,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-27 11:06:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 314 transitions. [2023-08-27 11:06:53,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32983193277310924 [2023-08-27 11:06:53,894 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 314 transitions. [2023-08-27 11:06:53,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 314 transitions. [2023-08-27 11:06:53,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:53,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 314 transitions. [2023-08-27 11:06:53,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 39.25) internal successors, (314), 8 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,896 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 119.0) internal successors, (1071), 9 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,896 INFO L175 Difference]: Start difference. First operand has 31 places, 16 transitions, 90 flow. Second operand 8 states and 314 transitions. [2023-08-27 11:06:53,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 17 transitions, 124 flow [2023-08-27 11:06:53,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 17 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:06:53,900 INFO L231 Difference]: Finished difference. Result has 34 places, 15 transitions, 92 flow [2023-08-27 11:06:53,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=92, PETRI_PLACES=34, PETRI_TRANSITIONS=15} [2023-08-27 11:06:53,901 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 16 predicate places. [2023-08-27 11:06:53,901 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 15 transitions, 92 flow [2023-08-27 11:06:53,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:53,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:53,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:06:53,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 11:06:53,902 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:53,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:53,904 INFO L85 PathProgramCache]: Analyzing trace with hash -273493884, now seen corresponding path program 1 times [2023-08-27 11:06:53,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:53,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071255865] [2023-08-27 11:06:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:53,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:54,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:54,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071255865] [2023-08-27 11:06:54,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071255865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:54,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:54,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 11:06:54,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987836328] [2023-08-27 11:06:54,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:54,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 11:06:54,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:54,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 11:06:54,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-27 11:06:54,155 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 119 [2023-08-27 11:06:54,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 15 transitions, 92 flow. Second operand has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:54,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 119 [2023-08-27 11:06:54,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:54,228 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-08-27 11:06:54,228 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-08-27 11:06:54,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 15 events. 0/15 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-08-27 11:06:54,228 INFO L140 encePairwiseOnDemand]: 112/119 looper letters, 6 selfloop transitions, 8 changer transitions 1/15 dead transitions. [2023-08-27 11:06:54,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 15 transitions, 120 flow [2023-08-27 11:06:54,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-27 11:06:54,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-27 11:06:54,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 386 transitions. [2023-08-27 11:06:54,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3243697478991597 [2023-08-27 11:06:54,230 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 386 transitions. [2023-08-27 11:06:54,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 386 transitions. [2023-08-27 11:06:54,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:54,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 386 transitions. [2023-08-27 11:06:54,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 38.6) internal successors, (386), 10 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,234 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,234 INFO L175 Difference]: Start difference. First operand has 34 places, 15 transitions, 92 flow. Second operand 10 states and 386 transitions. [2023-08-27 11:06:54,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 15 transitions, 120 flow [2023-08-27 11:06:54,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 15 transitions, 95 flow, removed 3 selfloop flow, removed 8 redundant places. [2023-08-27 11:06:54,235 INFO L231 Difference]: Finished difference. Result has 34 places, 14 transitions, 79 flow [2023-08-27 11:06:54,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=79, PETRI_PLACES=34, PETRI_TRANSITIONS=14} [2023-08-27 11:06:54,236 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 16 predicate places. [2023-08-27 11:06:54,236 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 14 transitions, 79 flow [2023-08-27 11:06:54,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:54,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:06:54,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 11:06:54,236 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:54,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash -273493866, now seen corresponding path program 1 times [2023-08-27 11:06:54,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:54,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424045837] [2023-08-27 11:06:54,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:54,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:54,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:54,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424045837] [2023-08-27 11:06:54,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424045837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:54,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:54,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 11:06:54,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768452626] [2023-08-27 11:06:54,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:54,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 11:06:54,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:54,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 11:06:54,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-27 11:06:54,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 119 [2023-08-27 11:06:54,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 14 transitions, 79 flow. Second operand has 8 states, 8 states have (on average 34.0) internal successors, (272), 8 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:54,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 119 [2023-08-27 11:06:54,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:54,660 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-08-27 11:06:54,660 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-27 11:06:54,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 13 events. 0/13 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-08-27 11:06:54,661 INFO L140 encePairwiseOnDemand]: 111/119 looper letters, 5 selfloop transitions, 3 changer transitions 5/13 dead transitions. [2023-08-27 11:06:54,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 13 transitions, 101 flow [2023-08-27 11:06:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-27 11:06:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-27 11:06:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 311 transitions. [2023-08-27 11:06:54,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2903828197945845 [2023-08-27 11:06:54,663 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 311 transitions. [2023-08-27 11:06:54,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 311 transitions. [2023-08-27 11:06:54,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:54,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 311 transitions. [2023-08-27 11:06:54,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 34.55555555555556) internal successors, (311), 9 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,667 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,667 INFO L175 Difference]: Start difference. First operand has 34 places, 14 transitions, 79 flow. Second operand 9 states and 311 transitions. [2023-08-27 11:06:54,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 13 transitions, 101 flow [2023-08-27 11:06:54,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 13 transitions, 84 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-27 11:06:54,669 INFO L231 Difference]: Finished difference. Result has 32 places, 8 transitions, 39 flow [2023-08-27 11:06:54,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=39, PETRI_PLACES=32, PETRI_TRANSITIONS=8} [2023-08-27 11:06:54,669 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 14 predicate places. [2023-08-27 11:06:54,669 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 8 transitions, 39 flow [2023-08-27 11:06:54,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.0) internal successors, (272), 8 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:54,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:06:54,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 11:06:54,670 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-27 11:06:54,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:54,670 INFO L85 PathProgramCache]: Analyzing trace with hash -199279783, now seen corresponding path program 1 times [2023-08-27 11:06:54,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:54,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27467572] [2023-08-27 11:06:54,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:54,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:54,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:54,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27467572] [2023-08-27 11:06:54,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27467572] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:54,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:54,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-27 11:06:54,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170673964] [2023-08-27 11:06:54,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:54,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-27 11:06:54,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:54,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-27 11:06:54,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-08-27 11:06:54,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 119 [2023-08-27 11:06:54,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 8 transitions, 39 flow. Second operand has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:54,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 119 [2023-08-27 11:06:54,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:54,937 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-08-27 11:06:54,937 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 11:06:54,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 7 events. 0/7 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-08-27 11:06:54,938 INFO L140 encePairwiseOnDemand]: 113/119 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2023-08-27 11:06:54,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 7 transitions, 49 flow [2023-08-27 11:06:54,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 11:06:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 11:06:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 230 transitions. [2023-08-27 11:06:54,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32212885154061627 [2023-08-27 11:06:54,939 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 230 transitions. [2023-08-27 11:06:54,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 230 transitions. [2023-08-27 11:06:54,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:54,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 230 transitions. [2023-08-27 11:06:54,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,941 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,941 INFO L175 Difference]: Start difference. First operand has 32 places, 8 transitions, 39 flow. Second operand 6 states and 230 transitions. [2023-08-27 11:06:54,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 7 transitions, 49 flow [2023-08-27 11:06:54,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 7 transitions, 36 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-27 11:06:54,942 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-08-27 11:06:54,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-08-27 11:06:54,944 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 1 predicate places. [2023-08-27 11:06:54,944 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-08-27 11:06:54,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.0) internal successors, (304), 8 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:54,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-08-27 11:06:54,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-08-27 11:06:54,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-27 11:06:54,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-08-27 11:06:54,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-27 11:06:54,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-27 11:06:54,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-27 11:06:54,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 11:06:54,948 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:06:54,951 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 11:06:54,951 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 11:06:54,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:06:54 BasicIcfg [2023-08-27 11:06:54,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 11:06:54,960 INFO L158 Benchmark]: Toolchain (without parser) took 7021.78ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 353.2MB in the beginning and 322.6MB in the end (delta: 30.6MB). Peak memory consumption was 110.0MB. Max. memory is 16.0GB. [2023-08-27 11:06:54,960 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 379.6MB. Free memory was 357.3MB in the beginning and 357.2MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:06:54,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 722.36ms. Allocated memory is still 379.6MB. Free memory was 352.9MB in the beginning and 315.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-27 11:06:54,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.56ms. Allocated memory is still 379.6MB. Free memory was 315.2MB in the beginning and 313.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:06:54,961 INFO L158 Benchmark]: Boogie Preprocessor took 35.19ms. Allocated memory is still 379.6MB. Free memory was 313.0MB in the beginning and 311.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:06:54,961 INFO L158 Benchmark]: RCFGBuilder took 372.60ms. Allocated memory is still 379.6MB. Free memory was 311.2MB in the beginning and 297.7MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 11:06:54,961 INFO L158 Benchmark]: TraceAbstraction took 5820.71ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 297.1MB in the beginning and 322.6MB in the end (delta: -25.4MB). Peak memory consumption was 53.4MB. Max. memory is 16.0GB. [2023-08-27 11:06:54,962 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 379.6MB. Free memory was 357.3MB in the beginning and 357.2MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 722.36ms. Allocated memory is still 379.6MB. Free memory was 352.9MB in the beginning and 315.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.56ms. Allocated memory is still 379.6MB. Free memory was 315.2MB in the beginning and 313.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.19ms. Allocated memory is still 379.6MB. Free memory was 313.0MB in the beginning and 311.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 372.60ms. Allocated memory is still 379.6MB. Free memory was 311.2MB in the beginning and 297.7MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 5820.71ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 297.1MB in the beginning and 322.6MB in the end (delta: -25.4MB). Peak memory consumption was 53.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] - GenericResultAtLocation [Line: 1233]: Unsoundness Warning unspecified type, defaulting to int C: unsigned long [1233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 66 PlacesBefore, 18 PlacesAfterwards, 62 TransitionsBefore, 14 TransitionsAfterwards, 874 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 56 TotalNumberOfCompositions, 1235 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 855, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 497, independent: 478, independent conditional: 0, independent unconditional: 478, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 855, independent: 293, independent conditional: 0, independent unconditional: 293, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 497, unknown conditional: 0, unknown unconditional: 497] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=5, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 11:06:54,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...